Method for preparing thiol functionalized mesoporous bamboo charcoal materials

Abstract

The invention discloses a method for preparing thiol functionalized mesoporous bamboo charcoal materials. The method has the advantages that preliminary activating treatment is carried out on bamboo powder by the aid of activating solution with surfactants and alkali metal salt, accordingly, the surface performance of the bamboo powder can be improved, the dispersity of the bamboo powder in organosilicon sol can be enhanced, follow-up bamboo powder carbonization effects can be improved by the introduced metal salt, and the carbon immobilizing rate is high; bamboo charcoal powder obtained after the bamboo powder already subjected to dipping treatment by the aid of organosilicon sol systems is carbonized is fine and uniform in pore diameter distribution and is high in strength; the bamboo charcoal powder is functionally modified by the aid of thiol siloxane sol, thiol can be effectively set by the aid of sol-gel processes, and the thiol functionalized mesoporous bamboo charcoal materials prepared by the aid of the method can be obviously functionalized.

Description

Technical field [0001] The invention relates to the technical field of modified bamboo charcoal materials, in particular to a preparation method of sulfhydryl functionalized mesoporous bamboo charcoal materials. Background technique [0002] Bamboo charcoal is the main solid product obtained by thermally cracking bamboo under the conditions of high temperature, lack of oxygen or restricted oxygen. It consists of graphite-like carbon crystallites arranged in a spiral layer structure, and a developed microporous structure is formed by the strong cross-linking between the crystallites. The size of the pores is not the same. It is a kind of adsorption material with excellent performance. Traditional adsorption materials such as activated carbon have obvious price advantages. Since the pore size distribution of bamboo charcoal is generally concentrated in the range of micropores, it has good adsorption performance for gas and liquid small molecules, and poor adsorption for some polym...

AI Technical Summary

Problems solved by technology

For example, the use of potassium permanganate oxidation, high-temperature nitrogen activation treatment, acid-base modification, etc., has improved the microporous structure of bamboo charcoal to a certain extent, introduced more functional groups, and further improved the adsorption capacity. However, there is no sulfhydryl function. Bamboo charcoal materials see the newspaper